The Humane Society said a Washington Parish resident saw two men kill a dog after shooting it several times in the head while the dog was tied to a tree. The incident happened around 10:45 a.m. Monday.

The dog, a black female bulldog-mix, was shot five to seven times. Her body was found in a ditch not far from where she was shot.

According to the Humane Society, the two men who shot the dog were seen driving a green Chevy truck with an extended cab. The truck has the word "Jesus" written on the front license. The witness said the two men were both black, one was middle-aged to elderly and the other was young.

"We are horrified at the complete lack of sensitivity and depravity of these two perpetrators," said Jeff Dorson, Humane Society Louisiana Director. "No animal should have to endure such a terrifying execution and be given such a dishonorable burial."

The Humane Society is offering a $500 reward for information that leads to the perpetrator's arrest. The organization can be reached at 1-888-6-Humane.